Sulfur- and Nitrogen-Containing Porous Donor-Acceptor Polymers as Real-Time Optical and Chemical Sensors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F19%3A00511002" target="_blank" >RIV/61388963:_____/19:00511002 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.acs.org/doi/10.1021/acs.macromol.9b01643" target="_blank" >https://pubs.acs.org/doi/10.1021/acs.macromol.9b01643</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.macromol.9b01643" target="_blank" >10.1021/acs.macromol.9b01643</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Sulfur- and Nitrogen-Containing Porous Donor-Acceptor Polymers as Real-Time Optical and Chemical Sensors

Popis výsledku v původním jazyce

Fully aromatic, organic polymers have the advantage of being composed from light, abundant elements, and are hailed as candidates in electronic and optical devices 'beyond silicon', yet, applications that make use of their pi-conjugated backbone and optical bandgap are lacking outside of heterogeneous catalysis. Herein, we use a series of sulfur- and nitrogen-containing porous polymers (SNPs) as real-lime optical and electronic sensors reversibly triggered and reset by acid and ammonia vapors. Our SNPs incorporate donor-acceptor and donor-donor motifs in extended networks and enable us to study the changes in bulk conductivity, optical bandgap, and fluorescence lifetimes as a function of pi-electron de/localization in the pristine and protonated states. Interestingly, we find that protonated donor-acceptor polymers show a decrease of the optical bandgap by 0.42 to 0.76 eV and longer fluorescence lifetimes. In contrast, protonation of a donor-donor polymer does not affect its bandgap, however, it leads to an increase of electrical conductivity by up to 25-fold and shorter fluorescence lifetimes. The design strategies highlighted in this study open new avenues toward useful chemical switches and sensors based on modular purely organic materials.

Název v anglickém jazyce

Sulfur- and Nitrogen-Containing Porous Donor-Acceptor Polymers as Real-Time Optical and Chemical Sensors

Popis výsledku anglicky

Fully aromatic, organic polymers have the advantage of being composed from light, abundant elements, and are hailed as candidates in electronic and optical devices 'beyond silicon', yet, applications that make use of their pi-conjugated backbone and optical bandgap are lacking outside of heterogeneous catalysis. Herein, we use a series of sulfur- and nitrogen-containing porous polymers (SNPs) as real-lime optical and electronic sensors reversibly triggered and reset by acid and ammonia vapors. Our SNPs incorporate donor-acceptor and donor-donor motifs in extended networks and enable us to study the changes in bulk conductivity, optical bandgap, and fluorescence lifetimes as a function of pi-electron de/localization in the pristine and protonated states. Interestingly, we find that protonated donor-acceptor polymers show a decrease of the optical bandgap by 0.42 to 0.76 eV and longer fluorescence lifetimes. In contrast, protonation of a donor-donor polymer does not affect its bandgap, however, it leads to an increase of electrical conductivity by up to 25-fold and shorter fluorescence lifetimes. The design strategies highlighted in this study open new avenues toward useful chemical switches and sensors based on modular purely organic materials.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Macromolecules

ISSN

0024-9297

e-ISSN

—

Svazek periodika

52

Číslo periodika v rámci svazku

20

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

7696-7703

Kód UT WoS článku

000492801000017

EID výsledku v databázi Scopus

2-s2.0-85073161532